{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,3]],"date-time":"2026-03-03T16:25:40Z","timestamp":1772555140415,"version":"3.50.1"},"reference-count":38,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2022,4,8]],"date-time":"2022-04-08T00:00:00Z","timestamp":1649376000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"the Opening Project of Key Laboratory of Power Electronics and Motion Control of Anhui Higher Education Institutions","award":["PEMC2001"],"award-info":[{"award-number":["PEMC2001"]}]},{"name":"the Natural Science Foundation of Anhui Province","award":["1808085MF195"],"award-info":[{"award-number":["1808085MF195"]}]},{"name":"the Open Fund of State Key Laboratory of Tea Plant Biology and Utilization","award":["SKLTOF20200116"],"award-info":[{"award-number":["SKLTOF20200116"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>For the issue of low accuracy and poor real-time performance of insulator and defect detection by an unmanned aerial vehicle (UAV) in the process of power inspection, an insulator detection model MobileNet_CenterNet was proposed in this study. First, the lightweight network MobileNet V1 was used to replace the feature extraction network Resnet-50 of the original model, aiming to ensure the detection accuracy of the model while speeding up its detection speed. Second, a spatial and channel attention mechanism convolutional block attention module (CBAM) was introduced in CenterNet, aiming to improve the prediction accuracy of small target insulator position information. Then, three transposed convolution modules were added for upsampling, aiming to better restore the semantic information and position information of the image. Finally, the insulator dataset (ID) constructed by ourselves and the public dataset (CPLID) were used for model training and validation, aiming to improve the generalization ability of the model. The experimental results showed that compared with the CenterNet model, MobileNet_CenterNet improved the detection accuracy by 12.2%, the inference speed by 1.1 f\/s for FPS-CPU and 4.9 f\/s for FPS-GPU, and the model size was reduced by 37 MB. Compared with other models, our proposed model improved both detection accuracy and inference speed, indicating that the MobileNet_CenterNet model had better real-time performance and robustness.<\/jats:p>","DOI":"10.3390\/s22082850","type":"journal-article","created":{"date-parts":[[2022,4,7]],"date-time":"2022-04-07T22:23:23Z","timestamp":1649370203000},"page":"2850","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":46,"title":["An Improved CenterNet Model for Insulator Defect Detection Using Aerial Imagery"],"prefix":"10.3390","volume":"22","author":[{"given":"Haiyang","family":"Xia","sequence":"first","affiliation":[{"name":"School of Information and Computer, Anhui Agricultural University, Hefei 230036, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1967-8845","authenticated-orcid":false,"given":"Baohua","family":"Yang","sequence":"additional","affiliation":[{"name":"School of Information and Computer, Anhui Agricultural University, Hefei 230036, China"},{"name":"Anhui Provincial Key Laboratory of Power Electronics and Motion Control, Ma\u2019anshan 243032, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yunlong","family":"Li","sequence":"additional","affiliation":[{"name":"School of Information and Computer, Anhui Agricultural University, Hefei 230036, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bing","family":"Wang","sequence":"additional","affiliation":[{"name":"Anhui Provincial Key Laboratory of Power Electronics and Motion Control, Ma\u2019anshan 243032, China"},{"name":"School of Electrical and Information Engineering, Anhui University of Technology, Ma\u2019anshan 243032, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,4,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"9699","DOI":"10.1109\/TIE.2017.2716862","article-title":"Acoustic Fault Detection Technique for High-Power Insulators","volume":"64","author":"Park","year":"2017","journal-title":"IEEE Trans. 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